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作者:

Guo, Shiquan (Guo, Shiquan.) | Liu, Jingbing (Liu, Jingbing.) | Zhang, Qianqian (Zhang, Qianqian.) | Jin, Yuhong (Jin, Yuhong.) | Wang, Hao (Wang, Hao.)

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EI SCIE

摘要:

In this work, a scalable approach of preparing Co3O4/Co@NC composite derived from metal organic frameworks (MOFs) is developed. After consecutive carbonization and oxidation of MOFs at different calcination temperatures, a series of nanocomposite consisting of Co3O4, conductive Co nanoparticles, and Nitrogen doped (N-doped) mesoporous carbon are obtained via in-situ polymerization strategy. When employed as anode materials for lithium-ion batteries (LIBs), the Crystalline-Co3O4/Co@NC-700 (Cry-Co3O4/Co@NC-700) electrode has shown high reversible specific capacity of 896.5 mAh g−1 at 0.1 A g−1, excellent rate capability of 376.2 mAh g−1 at a large current density of 2 A g−1, and robust long-term capacity retention rate of 96.0% at 0.2 A g−1 after 50 cycles. Such superior lithium storage performance could be attributed to the unique porous structure which composed of well-dispersed Co3O4 and conductive Co nanoparticles together with N-doped carbon skeleton. The unique structure can effectively improve the conductivity and act as a buffer medium to alleviate the volume change, which shows potential application for new energy storage materials. © 2020 Elsevier B.V.

关键词:

Anodes Buffer storage Carbon Carbonization Cobalt Doping (additives) Energy storage Lithium-ion batteries Metal-Organic Frameworks Nanocrystalline materials Nanoparticles Organic polymers Organometallics

作者机构:

  • [ 1 ] [Guo, Shiquan]The College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 2 ] [Liu, Jingbing]The College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 3 ] [Zhang, Qianqian]The College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 4 ] [Jin, Yuhong]The College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China
  • [ 5 ] [Wang, Hao]The College of Materials Science and Engineering, Beijing University of Technology, Beijing; 100124, China

通讯作者信息:

  • [liu, jingbing]the college of materials science and engineering, beijing university of technology, beijing; 100124, china

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来源 :

Journal of Alloys and Compounds

ISSN: 0925-8388

年份: 2021

卷: 855

6 . 2 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:8

被引次数:

WoS核心集被引频次: 0

SCOPUS被引频次: 34

ESI高被引论文在榜: 0 展开所有

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